PARAMETRIC PETRI NET MODEL FOR ETHERNET PERFOMANCE AND QOS EVALUATION
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Parametric model of switched Ethernet in the form of a colored Petri net is presented. The model is invariant regarding the structure of the network; it has fixed number of nodes for any given tree-like network. Special measuring fragments, which accomplish the model, provide the evaluation of the network throughput and the frame delivery time directly in the process of simulation. The anomaly of Ethernet switches’ mutual blocking has been revealed.